Class: CanvasERD::WebApplication

Inherits:
Object
  • Object
show all
Defined in:
lib/canvas_erd/server.rb

Constant Summary collapse

WEB_ROOT = 
File.expand_path("web", __dir__)
STATIC_FILES = 
{
  "/" => ["index.html", "text/html; charset=utf-8"],
  "/assets/app.js" => ["app.js", "application/javascript; charset=utf-8"],
  "/assets/document.js" => ["document.js", "application/javascript; charset=utf-8"],
  "/assets/layout.js" => ["layout.js", "application/javascript; charset=utf-8"],
  "/assets/png.js" => ["png.js", "application/javascript; charset=utf-8"],
  "/assets/styles.css" => ["styles.css", "text/css; charset=utf-8"],
  "/assets/fabric.min.js" => ["vendor/fabric.min.js", "application/javascript; charset=utf-8"],
  "/assets/elk-api.js" => ["vendor/elk-api.js", "application/javascript; charset=utf-8"],
  "/assets/elk-worker.min.js" => ["vendor/elk-worker.min.js", "application/javascript; charset=utf-8"]
}.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(schema:, schema_provider: nil, state: nil, diagram_store: nil) ⇒ WebApplication

Returns a new instance of WebApplication.



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# File 'lib/canvas_erd/server.rb', line 24

def initialize(schema:, schema_provider: nil, state: nil, diagram_store: nil)
  @schema = schema
  @schema_provider = schema_provider || -> { schema }
  @diagram_store = diagram_store
  @schema_mutex = Mutex.new
  @document = {
    "format" => "canvas_erd",
    "version" => 1,
    "schema" => schema,
    "state" => state
  }
end

Instance Attribute Details

#schema ⇒ Object (readonly)

Returns the value of attribute schema.



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# File 'lib/canvas_erd/server.rb', line 22

def schema
  @schema
end

Instance Method Details

#call(environment) ⇒ Object 



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# File 'lib/canvas_erd/server.rb', line 37

def call(environment)
  method = environment.fetch("REQUEST_METHOD")
  path = environment.fetch("PATH_INFO")

  status, headers, body = route(method, path, environment)

  body = [] if method == "HEAD"
  [status, security_headers.merge(headers), body]
rescue DiagramStore::NotFound => error
  status, headers, body = response(404, "text/plain; charset=utf-8", error.message)
  [status, security_headers.merge(headers), method == "HEAD" ? [] : body]
rescue DiagramStore::Error => error
  status, headers, body = response(400, "text/plain; charset=utf-8", error.message)
  [status, security_headers.merge(headers), method == "HEAD" ? [] : body]
end